package com.lanyuan.util;

import com.lanyuan.util.baidu.GsonUtils;
import com.lanyuan.util.baidu.HttpUtil;
import org.json.JSONArray;
import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class BaiduFaceAi {

    public static String getAuth() {
        // 官网获取的 API Key 更新为你注册的
        String clientId = "BxdS65sBsfI6ejyGwQbgk94i";
        // 官网获取的 Secret Key 更新为你注册的
        String clientSecret = "jcIV5oCLibvYPdHnBYmb8YuHZnQjnv04 ";
        return getAuth(clientId, clientSecret);
    }

    /**
     * 获取API访问token
     * 该token有一定的有效期，需要自行管理，当失效时需重新获取.
     * @param ak - 百度云官网获取的 API Key
     * @param sk - 百度云官网获取的 Securet Key
     * @return assess_token 示例：
     * "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567"
     */
    public static String getAuth(String ak, String sk) {
        // 获取token地址
        String authHost = "https://aip.baidubce.com/oauth/2.0/token?";
        String getAccessTokenUrl = authHost
                // 1. grant_type为固定参数
                + "grant_type=client_credentials"
                // 2. 官网获取的 API Key
                + "&client_id=" + ak
                // 3. 官网获取的 Secret Key
                + "&client_secret=" + sk;
        try {
            URL realUrl = new URL(getAccessTokenUrl);
            // 打开和URL之间的连接
            HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
            connection.setRequestMethod("GET");
            connection.connect();
            // 获取所有响应头字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍历所有的响应头字段
            for (String key : map.keySet()) {
                System.err.println(key + "--->" + map.get(key));
            }
            // 定义 BufferedReader输入流来读取URL的响应
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String result = "";
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
            /**
             * 返回结果示例
             */
            System.err.println("result:" + result);
            JSONObject jsonObject = new JSONObject(result);
            String access_token = jsonObject.getString("access_token");
            return access_token;
        } catch (Exception e) {
            System.err.printf("获取token失败！");
            e.printStackTrace(System.err);
        }
        return null;
    }
    public static String addFace(String image,String groupId,String userId,String userInfo) throws Exception {
        // 请求url
        String url = "https://aip.baidubce.com/rest/2.0/face/v3/faceset/user/add";

            Map<String, Object> map = new HashMap<>();
            map.put("image", image);
            map.put("group_id", groupId);
            map.put("user_id", userId);
            map.put("user_info", userInfo);
            map.put("liveness_control", "NONE");
            map.put("image_type", "BASE64");
            map.put("quality_control", "NONE");

            String param = GsonUtils.toJson(map);

            // 注意这里仅为了简化编码每一次请求都去获取access_token，线上环境access_token有过期时间， 客户端可自行缓存，过期后重新获取。
            String accessToken = getAuth();

            String result = null;

            result = HttpUtil.post(url, accessToken, "application/json", param);

            System.out.println(result);
            JSONObject object = new JSONObject(result);
            if(object.getInt("error_code")!=0){
                throw new Exception(object.getString("error_msg"));
            }

            JSONObject resObj = object.getJSONObject("result");
            return resObj.getString("face_token");


    }

    public static String faceUpdate(String image,String groupId,String userId,String userInfo) throws Exception {
        // 请求url
        String url = "https://aip.baidubce.com/rest/2.0/face/v3/faceset/user/update";

            Map<String, Object> map = new HashMap<>();
            map.put("image", image);
            map.put("group_id", groupId);
            map.put("user_id", userId);
            map.put("user_info", userInfo);
            map.put("liveness_control", "NONE");
            map.put("image_type", "BASE64");
            map.put("quality_control", "NONE");

            String param = GsonUtils.toJson(map);

            // 注意这里仅为了简化编码每一次请求都去获取access_token，线上环境access_token有过期时间， 客户端可自行缓存，过期后重新获取。
            String accessToken = getAuth();

            String result = HttpUtil.post(url, accessToken, "application/json", param);
            System.out.println(result);
            JSONObject object = new JSONObject(result);
        if(object.getInt("error_code")!=0){
            throw new Exception(object.getString("error_msg"));
        }
        JSONObject resObj = object.getJSONObject("result");
        return resObj.getString("face_token");


    }

    public static void faceDelete(String face_token,String groupId,String userId) throws Exception {
        // 请求url
        String url = "https://aip.baidubce.com/rest/2.0/face/v3/faceset/user/delete";

            Map<String, Object> map = new HashMap<>();
            map.put("face_token", face_token);

            map.put("group_id", groupId);
            map.put("user_id", userId);


            String param = GsonUtils.toJson(map);

            // 注意这里仅为了简化编码每一次请求都去获取access_token，线上环境access_token有过期时间， 客户端可自行缓存，过期后重新获取。
            String accessToken = getAuth();

            String result = HttpUtil.post(url, accessToken, "application/json", param);
            System.out.println(result);
        JSONObject object = new JSONObject(result);
        if(object.getInt("error_code")!=0){
            throw new Exception(object.getString("error_msg"));
        }

    }

    public static String faceSearch(String image,String groupId) {
        // 请求url
        String url = "https://aip.baidubce.com/rest/2.0/face/v3/search";
        try {
            Map<String, Object> map = new HashMap<>();
            map.put("image", image);
            map.put("liveness_control", "NONE");
            map.put("group_id_list", groupId);
            map.put("image_type", "BASE64");
            map.put("quality_control", "NONE");

            String param = GsonUtils.toJson(map);

            // 注意这里仅为了简化编码每一次请求都去获取access_token，线上环境access_token有过期时间， 客户端可自行缓存，过期后重新获取。
            String accessToken = getAuth();

            String result = HttpUtil.post(url, accessToken, "application/json", param);
            System.out.println(result);
            JSONObject object = new JSONObject(result);
            if(object.getInt("error_code")!=0){
                throw new Exception(object.getString("error_msg"));
            }
            JSONObject result1 = object.getJSONObject("result");
            JSONArray user_list = result1.getJSONArray("user_list");
            JSONObject res = (JSONObject) user_list.get(0);
            Double score = res.getDouble("score");
            if(score<50){
                return null;
            }
            return res.getString("user_id");
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

}
